Premium Only Content
Finger Fuel Cell
Plastic cylinder with reloadable metal pipe electrode, separator, carbon felt and graphite rod core, metal pipe touches the bottom metal plate and graphite rod is the top contact, with some carbon felt to let the fuel cell exchange air, and add the electrolyte. Designed to be used upright but can be possibly used in any orientation, because electrolyte liquid does not escape from the separator and carbon felt, but is infused in the salt bridge. Majority of the fuel cell weight is the metal pipe, from 80% up, other materials are plastic and carbon felt/graphite, which are many times lighter than the metal in same volume, especially iron. Specific energy rating is 80-95% close to the metal energy density, from 1.3kWh/kg of zinc to 9.0kWh/kg of silicon. Fast swap of the metal-pipe electrode after full consumption, swap out the powder dust metal oxide and insert a new metal pipe, such as zinc, iron, tin, aluminium, magnesium, silicon pipe, even copper metal electrode provides some electricity in pure ethanol-koh electrolyte, aluminium is not compatible with aluminium metal electrode in water-koh electrolyte for hydrogen evolution. Ethanol/water-KOH electrolyte is recommended, as NaOH in water will not etch metal oxides enough, also sulfates like magnesium sulfate, iron sulfate or zinc sulfate in water are possible electrolytes. In ethanol-KOH/NaOH electrolyte mixes, potassium/sodium ethoxide in solution will enhance etching-removal of the metal oxides from the electrodes, also providing low temperature compatibility-operation of the aqueous/ethanol fuel cells.
-
0:40
Jkauppafi
3 months agoSolid Skater Bearing Wheel
31 -
LIVE
Dr Disrespect
6 hours ago🔴LIVE - DR DISRESPECT - WARZONE - CRAZY CHALLENGES
3,552 watching -
16:21
China Uncensored
3 hours agoCan Anything Stop the Tiktok Ban?
10.6K1 -
7:08
Guns & Gadgets 2nd Amendment News
7 hours agoTruckers Fight For National Reciprocity
7.83K6 -
LIVE
Scammer Payback
3 hours agoCalling Scammers Live
349 watching -
43:49
Stephen Gardner
3 hours ago🔥Congress DROPS Bad News on Newsom and Biden!
47.5K34 -
1:54:54
Twins Pod
3 hours agoHe Left The RAP Industry To Make Christian Music! | Twins Pod - Episode 48 - Bryson Gray
42.3K8 -
1:30:05
The Quartering
5 hours agoSupreme Court RULES On TikTok Ban, Kamala Harris At Rock Bottom & Brawls Break Out At Costco!
59.4K16 -
1:36:11
Tucker Carlson
4 hours agoSean Davis: Trump Shooting Update, & the Real Reason Congress Refuses to Investigate
189K101 -
2:55:32
The Dana Show with Dana Loesch
5 hours agoTHE END OF TIKTOK | The Dana Show LIVE On Rumble!
25.2K8